Hi!

I have laptop with nVidia 9600M GT graphic card and I had problem with installing drivers on Mint 12 & 13 x64. Currently I use Mint 13 Cinnamon x64!

First problem was graphics, I could not start in GUI so:

1. navigate to etc/default/grub

2. sudo pico grub (or you can use nano)

3. add nouveau.blacklist=1, so that this line of code looks like

GRUB_CMDLINE_LINUX_DEFAULT = "nouveau.blacklist=1 quiet splash"

save and exit

4. sudo update-grub2

5. sudo reboot

6. Install nVidia drivers and reboot 

Second problem vas there was no sound coming from HDMI, so:

1. open alsamixer in terminal

2. set all values to unmute

3. exit

4. when HDMI connected use sound setings and chose your HDMI device

I want to add that solution for graphic driver problem is not my contribution, but was found on diferent forums/blogs on net! This solution works for me, if it this don't work for you or damages your system i take no responsibility!

P.S. This is my first tutorial and I dont know how to write disclaimer :)

Godbless !